Global Stocks Fall on Ukraine Unrest

Gold, Treasury Bonds Rally on Haven Plays

The crisis in Ukraine rattled financial markets, triggering a global stock selloff and driving up prices for oil, gold and wheat, as investors assessed the potential impact of a showdown between Russia and the West.

All three major U.S. stock indexes posted their biggest one-day declines in a month. The losses on Monday followed on the heels of declines in overseas markets after Russia moved troops into Ukraine's Crimea peninsula...